20578143

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{5683}}^1$

素因数の和:5774

約数の個数: 16

約数和(自身を含む): 29465856

約数和(自身を除く): 8887713

約数列:

[1, 3, 17, 51, 71, 213, 1207, 3621, 5683, 17049, 96611, 289833, 403493, 1210479, 6859381, 20578143]

約数ペア:

[(1, 20578143), (3, 6859381), (17, 1210479), (51, 403493), (71, 289833), (213, 96611), (1207, 17049), (3621, 5683)]